1 000kV特高压单回交流输电线路电磁环境影响计算及分析

分析了1 000 kV特高压单回交流输电线路电磁环境问题，包括工频电场、工频磁场、无线电干扰和可听噪声等。结合现有的电磁环境评价限值，总结现行的电磁环境计算方法，以浙北-福州特高压线路为例，计算不同导线结构对应的电磁环境指标，推荐适合该特高压单回路交流线路的导线型式及分裂根数。对影响电磁环境的因素进行分析，得出不同影响因素对电磁环境影响的比较结果，其结果对今后的特高压单回路线路的设计具有指导作用。

Electromagnetic Environment of 1000 kV UHVAC Single-Circuit Transmission Lines

This paper studies the electromagnetic environmental problems of 1 000 kV UHVAC single - circuit transmission lines. Including frequency electric field, frequency magnetic fields, radio interference and audible noise. Combined the existing assessment limit of electromagnetic environmental, the existing calculation methods of electromagnetic environment were summarized. Taking the north of Zhejiang to Fuzhou UHV transmission line as example, this paper calculated the electromagnetic environmental indicators for different wire structures, and recommended the suitable wire type and split numbers for UHVAC single - circuit transmission lines. Finally, the factors affecting the electromagnetic environment analysis, the influence of different factors on the electromagnetic environment effects comparison, the results will play a guiding role on the future UHV single - circuit design.